PRE- and POST-THIN: a tool for the probabilistic design and analysis of composite rotor blade strength

Authors

  • D. J. Lekou,

    Corresponding author
    1. Centre for Renewable Energy Sources, 19th km Marathonos Ave., GR-190 09, Pikermi, Greece
    • Wind Energy Section, Centre for Renewable Energy Sources, 19th km Marathonos Ave., GR-190 09, Pikermi, Greece
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  • T. P. Philippidis

    1. University of Patras, Department of Mechanical Engineering & Aeronautics, PO Box 1401, GR-26504 Panepistimioupolis Rio, Greece
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Abstract

Structural reliability is a key factor in the design of wind turbine rotor blades. However, the use of composite materials in the blade structure and the many stochastic variables that are thus involved in the analysis makes the available probabilistic methods unattractive for integration in the design procedure. To overcome this, a numerical tool is developed for the probabilistic strength analysis of Fibre Reinforced Plastic (FRP) rotor blades. The stochastic nature of the anisotropic material properties is considered for the reliability estimation of the laminate and in turn the information is included in a pre- and post-processor of current aero-elastic codes. Copyright © 2009 John Wiley & Sons, Ltd.

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